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Facebook lagging

  • 4 ردود
  • 8 have this problem
  • 851 views
  • آخر ردّ كتبه Chris

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So for the last little while, Facebook has been making a complete nuisance of itself on firefox. This isn't a browser problem, because the other tabs I have open work perfectly fine, but FB takes forever to load, and any button I press to interact with it, (like the reload button,) also lags, (but, again, works fine on other tabs,). It doesn't even register links as being clickable for a good minute after loading. The page also seems to reset every time I switch from another tab to it, showing a blank page with a loading symbol. I have tried deleting the entire history, and restarting the browser, and deactivating the adblocker, (the only extension active) and nothing seems to help. Does anybody know why it's doing this, (other than because the company follows the 'if it isn't broke, break it' theory, which we all already knew,) and how to fix it?

So for the last little while, Facebook has been making a complete nuisance of itself on firefox. This isn't a browser problem, because the other tabs I have open work perfectly fine, but FB takes forever to load, and any button I press to interact with it, (like the reload button,) also lags, (but, again, works fine on other tabs,). It doesn't even register links as being clickable for a good minute after loading. The page also seems to reset every time I switch from another tab to it, showing a blank page with a loading symbol. I have tried deleting the entire history, and restarting the browser, and deactivating the adblocker, (the only extension active) and nothing seems to help. Does anybody know why it's doing this, (other than because the company follows the 'if it isn't broke, break it' theory, which we all already knew,) and how to fix it?

الحل المُختار

Update: Cleared history AGAIN and shut down firefox AGAIN and when it came back up there was apparently another new update to install. Seems to be working fine now, so I assume that had something to do with it.

Note to people who answered. Maybe read what the person you are replying to has written and don't suggest things/ask questions that they have already done/answered. That would be a lot less irritating to them. Although the prefs question was legitimate, at least, but, no, I had never altered that either.

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Does this only happen with Facebook ? Did you ever made changes to network.http prefs on the about:config page as that is not recommended?


Boot the computer in Windows Safe mode with network support to see if that has effect in case security software is causing problems.

If you use extensions ("3-bar" menu button or Tools -> Add-ons -> Extensions) that can block content (Adblock Plus, NoScript, DuckDuckGo PE, Disconnect, Ghostery, Privacy Badger, uBlock Origin) always make sure such extensions do not block content.

Firefox shows a purple shield instead of a gray shield at the left end of the location/address bar in case Enhanced Tracking Protection is blocking content.

  • click the shield icon for more detail and possibly disable the protection

You can check the Web Console for relevant-looking messages about blocked content.


You can try these steps in case of issues with webpages:

You can reload webpage(s) and bypass the cache to refresh possibly outdated or corrupted files.

  • hold down the Shift key and left-click the Reload button
  • press "Ctrl + F5" or press "Ctrl + Shift + R" (Windows,Linux)
  • press "Command + Shift + R" (Mac)

Clear the Cache and remove the Cookies for websites that cause problems via the "3-bar" Firefox menu button (Settings).

"Remove the Cookies" for websites that cause problems:

  • Settings -> Privacy & Security
    Cookies and Site Data: "Manage Data"

"Clear the Cache":

  • Settings -> Privacy & Security
    Cookies and Site Data -> Clear Data -> [X] Cached Web Content -> Clear

Start Firefox in Troubleshoot Mode to check if one of the extensions ("3-bar" menu button or Tools -> Add-ons -> Extensions) or if hardware acceleration or if userChrome.css/userContent.css is causing the problem.

  • switch to the Default System theme: "3-bar" menu button or Tools -> Add-ons -> Themes
  • do NOT click the "Refresh Firefox" button on the Troubleshoot Mode start window

You can remove all data stored in Firefox for a specific domain via "Forget About This Site" in the right-click context menu of an history entry ("History -> Show All History" or "View -> Sidebar -> History").

Using "Forget About This Site" will remove all data stored in Firefox for this domain like history and cookies and passwords and exceptions and cache, so be cautious. If you have a password or other data for that domain that you do not want to lose, make sure to backup this data or make a note.

You can't recover from this 'forget' unless you have a backup of involved files.

If you revisit a 'forgotten' website, data for that website will be saved once again.


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Since the problems only occur with FB, you could try deleting your cookies. That will mean having to log in again. https://support.mozilla.org/en-US/kb/clear-cookies-and-site-data-firefox

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الحل المُختار

Update: Cleared history AGAIN and shut down firefox AGAIN and when it came back up there was apparently another new update to install. Seems to be working fine now, so I assume that had something to do with it.

Note to people who answered. Maybe read what the person you are replying to has written and don't suggest things/ask questions that they have already done/answered. That would be a lot less irritating to them. Although the prefs question was legitimate, at least, but, no, I had never altered that either.

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This is a longstanding issue between Firefox and Facebook. You can run all of these fixes and it still does it, including turning off tracking and ad blocking plugins. This problem doesn't occur in other browsers anywhere nearly to the degree it does to in Firefox, by orders of magnitude. Brave is the one that runs the best with Facebook. There's something about Firefox that runs afoul of Facebook horrendously, making the browser unusable with their site.